;;; Compiled by f2cl version:
;;; ("$Id: f2cl1.l,v 1.209 2008/09/11 14:59:55 rtoy Exp $"
;;;  "$Id: f2cl2.l,v 1.37 2008/02/22 22:19:33 rtoy Rel $"
;;;  "$Id: f2cl3.l,v 1.6 2008/02/22 22:19:33 rtoy Rel $"
;;;  "$Id: f2cl4.l,v 1.7 2008/02/22 22:19:34 rtoy Rel $"
;;;  "$Id: f2cl5.l,v 1.197 2008/09/11 15:03:25 rtoy Exp $"
;;;  "$Id: f2cl6.l,v 1.48 2008/08/24 00:56:27 rtoy Exp $"
;;;  "$Id: macros.l,v 1.106 2008/09/15 15:27:36 rtoy Exp $")

;;; Using Lisp International Allegro CL Enterprise Edition 8.1 [64-bit Linux (x86-64)] (Oct 7, 2008 17:13)
;;;
;;; Options: ((:prune-labels nil) (:auto-save t)
;;;           (:relaxed-array-decls t) (:coerce-assigns :as-needed)
;;;           (:array-type ':array) (:array-slicing t)
;;;           (:declare-common nil) (:float-format double-float))

(in-package :clml.lapack)


(let* ((one 1.0))
  (declare (type (double-float 1.0 1.0) one) (ignorable one))
  (defun dgeqr2 (m n a lda tau work info)
    (declare (type (array double-float (*)) work tau a)
     (type (f2cl-lib:integer4) info lda n m))
    (f2cl-lib:with-multi-array-data ((a double-float a-%data%
                                      a-%offset%)
                                     (tau double-float tau-%data%
                                      tau-%offset%)
                                     (work double-float work-%data%
                                      work-%offset%))
      (prog ((aii 0.0) (i 0) (k 0))
            (declare (type (double-float) aii)
             (type (f2cl-lib:integer4) i k))
            (setf info 0)
            (cond ((< m 0) (setf info -1))
                  ((< n 0) (setf info -2))
                  ((< lda
                      (max (the f2cl-lib:integer4 1)
                           (the f2cl-lib:integer4 m)))
                   (setf info -4)))
            (cond ((/= info 0)
                   (xerbla "DGEQR2" (f2cl-lib:int-sub info))
                   (go end_label)))
            (setf k
                  (min (the f2cl-lib:integer4 m)
                       (the f2cl-lib:integer4 n)))
            (f2cl-lib:fdo (i 1 (f2cl-lib:int-add i 1)) ((> i k) nil)
                          (tagbody
                              (multiple-value-bind (var-0 var-1 var-2
                                                    var-3 var-4)
                                  (dlarfg
                                   (f2cl-lib:int-add (f2cl-lib:int-sub m
                                                                       i)
                                                     1)
                                   (f2cl-lib:fref a-%data% (i i)
                                                  ((1 lda) (1 *))
                                                  a-%offset%)
                                   (f2cl-lib:array-slice a double-float
                                                         ((min (f2cl-lib:int-add i
                                                                                 1)
                                                               m)
                                                          i)
                                                         ((1 lda)
                                                          (1 *)))
                                   1
                                   (f2cl-lib:fref tau-%data% (i)
                                                  ((1 *))
                                                  tau-%offset%))
                                (declare (ignore var-0 var-2 var-3))
                                (setf (f2cl-lib:fref a-%data% (i i)
                                                     ((1 lda) (1 *))
                                                     a-%offset%)
                                      var-1)
                                (setf (f2cl-lib:fref tau-%data% (i)
                                                     ((1 *))
                                                     tau-%offset%)
                                      var-4))
                              (cond ((< i n)
                                     (setf aii
                                           (f2cl-lib:fref a-%data%
                                                          (i i)
                                                          ((1 lda)
                                                           (1 *))
                                                          a-%offset%))
                                     (setf (f2cl-lib:fref a-%data%
                                                          (i i)
                                                          ((1 lda)
                                                           (1 *))
                                                          a-%offset%)
                                           one)
                                     (dlarf "Left"
                                      (f2cl-lib:int-add (f2cl-lib:int-sub m
                                                                          i)
                                                        1)
                                      (f2cl-lib:int-sub n i)
                                      (f2cl-lib:array-slice a
                                                            double-float
                                                            (i i)
                                                            ((1 lda)
                                                             (1 *)))
                                      1
                                      (f2cl-lib:fref tau-%data% (i)
                                                     ((1 *))
                                                     tau-%offset%)
                                      (f2cl-lib:array-slice a
                                                            double-float
                                                            (i
                                                             (f2cl-lib:int-add i
                                                                               1))
                                                            ((1 lda)
                                                             (1 *)))
                                      lda work)
                                     (setf (f2cl-lib:fref a-%data%
                                                          (i i)
                                                          ((1 lda)
                                                           (1 *))
                                                          a-%offset%)
                                           aii)))
                            label10))
            (go end_label)
       end_label (return (values nil nil nil nil nil nil info))))))

(in-package #-gcl #:cl-user #+gcl "CL-USER")
#+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
(eval-when (:load-toplevel :compile-toplevel :execute)
  (setf (gethash 'fortran-to-lisp::dgeqr2
                 fortran-to-lisp::*f2cl-function-info*)
        (fortran-to-lisp::make-f2cl-finfo :arg-types '((fortran-to-lisp::integer4)
                                                       (fortran-to-lisp::integer4)
                                                       (array
                                                        double-float
                                                        (*))
                                                       (fortran-to-lisp::integer4)
                                                       (array
                                                        double-float
                                                        (*))
                                                       (array
                                                        double-float
                                                        (*))
                                                       (fortran-to-lisp::integer4))
          :return-values '(nil nil nil nil nil nil
                           fortran-to-lisp::info)
          :calls '(fortran-to-lisp::dlarf fortran-to-lisp::dlarfg
                   fortran-to-lisp::xerbla))))

